Avard joseph



linitrd tatts stent @Witte Letters Patent No. 104,090, dated June T, 1870.

REVOLVING- STEAM-GAUGE COCK.

The Schedule referred to .in these Letters Patent and making part of the same To all whom it ymay concern:

Be it known that we, DANIEL WILLIAMS and En three cocks placed in different positions in the boiler,

our gauge-cock heilig usually placed in the center of the head of the boiler. The separate part-s and arrangement of parts will be hereinafter more fully described.

In the drawing- Figure l is a longitudinal section through the entire cock.

Figure 2 is a front view, representing the invention attached to the boiler-head, the levers and. indexpointer in a vertical position, and the revolving pipe or dip in a horizontal position. This is the stationary position of the revolving cock.

AFigure 3 is a view of the same parts, showing the index-pointer and levers turned down to ligure 5 on the index-plate, and the revolving pipe or dip turned down below the water, so as to designate the quantity ot' water. The screwftap'is removed and the shape ot the valvefrod is seen at 11.

To enable others skilled in the art to make and use our invention, we will now proceed to descriheits construction and operation.

In the construction of our invention-wc may use any of the materials used for similar purposes.

In Iig. 1-

A-A A represents the boiler.

B, the plate, which is attached to the head ot' the boiler by screw-bolts a. The inner portion of this plate, through which the stemJ passes, is ground, so as to be steam-tight; and on its inner side, seen at b b, a recess is ground, like a valve-scket or seat,.in which a corresponding projection or enlargement, c c, ofthe stem J tits, and, when the stem is inserted, (its projection c and the recess b having been properly ground to make a steam-tight it,) the' joint between the stem and plate is made andl secnrelyhcld 'steamtight, by screwing up the nut 4.

C, thendicator-plate or scale, zero heilig its verti-' cal point, and is graduated and numbered up to 6, increasing from zero to the right and left, the scale indicatng the depth of water in the hoilerin feet or inches.

The screw-nuts 4 and 4 fit on the screw cuton the stem J. AThe inner one, or 4, is to draw the projection c snugly up into thc valve-seat or recess b of the plate. When this is donc the indicator or pointer I) is then slipped over thc stein J and pressed down close to the nut 4. flhcn the nut 4' is put on over `the indicator D, and screwed down tightly, so as to hold the indicator or pointer in place.

E, the lever for operating the cock so :is to turn it down orup, as required.

l", the lever for operating the valve G. This lever F has a joint, as seen at H, and a curved arm, I, which rests on or against. a screw-tap screwed onto the outercnd ot' the valvc-rod Gr. This valve-rod is made triangular in shape (as shown iu lig. 3 hyacrossf section) i'onl the valve r/ to a pointbeyond the hole hin the stcni J, as seen in lig. l. Its outer end is made round, and a screw-thread is cut on it, to allow a screw-tap to be fitted to it. This valve-rod G, owing to its triangular shape, tits the pipe or stein J, Icach corner or point edge hearing against the stein, while the flattened or plane sides of the rod G allow suliicient space within stcm J for thc escape ot' steam or. water, thus keeping the valve-rod and valve in proper position. Both ot thc lcvcrs E and F tit around thc stem J, and arc sccurcd tightly around saidl stern by meansof screws c c. The lcvcr Ii is still further 'tightened to the stein bylncans of a key, jl

The valve end of the vulve-rod is secu at y, lig. l, and lits tightly in its scat at thc inner end of the stein J, where the stcm J is connected to the extension stem X (which has a screw-tlncad cut on it throughout its entire length) by lncans ol' a screw-washer, L, which has :t right-and-lcft t'cmalc scicw-thrcath This washer Il can oc screwed tight against the inner side of the head of thc hcilcr. A curved joint or knuckle, Ii, is then screwed on thc inner cud of thc stern N, and the revolving tubc or dip M is then screwed into the end ot' the knuckle, the dip boing set at right angles to the stem J and lever E.

In fig. I the dotted lilies show thc operation of the lover F and its curved urin I, with valve G,and the arrows show the course of the water andstc'am in their escape through thc stom J, out at thc opening or hole h in the stem.

In g. 2 the saine letters designate the same parts ot" the invention as in fig. 1.

llarc screws for attachiiw' thc indicator-plate or 'Y scale to thc plate I5 or the bdilcr.

In tig. 3 like parts arc indicated hy saine let-ters as in gs. l and 2.

To operate our invention, it will hc. sccn that we place our revolving steam-gauge cock in the center of the head ot' the hoilcr, with the zero of' the scale orindicator-plate ou a vertical' liuc passing through the center of said boiler-head. The levers E and F and thc pointer or indicator I) are also in a vert-ical position, while the revolving tuhc or dip M is in a horizontal position, standing just above the water-line x, as seen iu fig. .2. ated, the pressure of the same on the valve g presses it on its seat, and e'eetually prevents the steams escape. a

In order to ascertain the amount of water, and from this the amount of steam in the boiler, the handlelever E is turned tothe left,.and, causing the revolving -tube or dip M to lower, as shown in tig. 3, lever F is then drawn back or from the boiler-head, turning, with its curved arm I upon the pin or screw-bolt of the joint H, (see g. 1,) until the arm I is made to press against the serew-tap on the valve-rod G, and

,the valve g is pushed from its seat, and thereby opening a way ofeseape from the boiler. The dip-tube M having now reached the water-line x, in tig. 3, the water will escape at the hole 71. in the main stem J, and the amount of .water is ascertained by reading the number to Whiehthe indicator D points on the scale. or indicator-plate; or, if the dip-tube M has not reached the water, steam, instead of water, will escape, and as soon as the lever F, with the curved arm I, islet go, the pressur'e of the steam will force the valve g to its seat, andthe escape of the steam will be .eut off.

It will be seen that, by the use of our invention, but one cock is necessary to find the amount of water in 'the boiler. The principal advantages of our cock are at once obvious. Our invention can be applied to any boiler.

We are aware that a revolving steam-gauge cock.

As soon -as steam is gener? having an indicator to designate the depth ot' water'iu, the boiler is not new; also, that a revolving dip-pipe operate the same are not new. broadly, claim either.

Having thus fully described our invention,

Therefore, we do not,

Letters Patent, is-` 1. The combination of the stern J, provided with project-ion c, the plate B with its recess b, and the poses described.

1n testimony` that we claim the above-described certain new and useful improvements in revolving names, this Sth day of April, 1870.

his ,1 DANIEL WILLIAMS.

mark. EDWARD JOSEPH.

Witnesses: I

JOSEPH HUNT, W. H. H. SIssoN.

for the same purpose is not new; also, that levers to p What we claim as new,.and desire to secure by.

nut 4, when constructed and operating substantially erating substantially in themanner and for the pur-- steam-gauge cocks,we have hereunto signed our 

